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yuradex [85]
3 years ago
16

Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine common ancestry?

Biology
2 answers:
mario62 [17]3 years ago
7 0
Fossils is the evidence
liq [111]3 years ago
7 0

Answer:

fossils

Explanation:

edgenuity 2020

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the answer i think be a area a has more predators then area b because if it was disease or lack of food source they wouldn't that low i think

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2 years ago
The stimulation of an inadequate number of sodium channels for the generation of a positive sodium channel feedback loop is cons
diamong [38]

Answer:

Sub-threshold

Explanation:

If the stimulus is too small to generate the action potential, it is considered as subthreshold stimulus. Subthreshold stimulus causes the opening of small number of sodium channel i.e. not enough to generate action potential because action potential is generated by complete reversal of membrane polarity. Slight depolarization is caused by subthreshold stimulus by the opening of inadequate number of sodium channel but its magnitude is not enough to reach the threshold voltage. Consequently the action potential is not generated.

The response produced by subthreshold stimulus is called as local response or local depolarization because it could not travel further. The minimum stimulus required to generate the action potential is call as threshold stimulus and stimulus greater than threshold stimulus is called as suprathreshold stimulus. It changes the frequency of generated action potential.

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2 years ago
As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each
AVprozaik [17]

Answer:

d. Character displacement

Explanation:

Character displacement is the phenomenon in which the similar species living in the same geographical region with similar niches differentiate in order to reduce their niche overlap and avoid competitive exculsion. Just like in this case of two- spot and three -spot avenger beetles as their timmings for hunting is different where their ranges overlap. So it's the good example of character displacement,

8 0
3 years ago
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Explain the meaning of excretion​
san4es73 [151]
The process by which metabolic waste is eliminated from an organism.
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What is the goal of seed dispersal? 10 points
den301095 [7]

Answer:

B. to have new plants that grow far away from parent plants so that they dont compete for resources

Explanation:

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